Based on the popular Broadway production and 1965 film starring Julie Andrews, the three-hour production tells the story of a militaristic but warm-hearted Capt. Georg von Trapp (Stephen Moyer) who engages a young governess, Maria (Underwood), whom he hires to take care of his seven children.

The Sound of Music Live! will premiere on Thursday, December 5th. Check out new promo below, too!